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(ModeL) F. T. DAVIS.

SASH FASTENER- No. 331,041. Patented Nov. 24,1885.

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WITNESSES N. PETERS. PholoLimagraphur, Washington, D. c.

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FRANKLIN T. DAVIS, OF MOUNT VERNON, NEW YORK.

SASH FASTENER.

:ZSPECIFICATION forming part of Letters Patent No. 331,0dl, dated November 244, 1885.

Application filed April 28, 1855.

To all whom it may concern.-

Be it known that I, FRANKLIN T. DAVIS, of Mount Vernon, in the county of Westchester and State of New York, have invented a new and Improved SashFastener, of which the following is a full, clear, and exact description.

My invention relates to an improved window-sash fastener that acts automatically to lock the sash, and the invention consists of the construction, arrangement, and combination of parts, all as hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a plan view of my new and improved sash-fastener as it appears applied to the Windowsash and locked. Fig. 2 is a sectional elevation of the same,taken on the line 00 0c of Fig. 1; and Fig. 3 is a similar view showing the fastener unlocked and the sash partly open.

To the upper surface of the upper bar, a, of the lower sash, A, of the window is attached the upwardly-projecting horn, 0. This is attached to or made apart of the bed-plate d, and it is outwardly curved or made convex at its outer edge, as shown at c, and concaved at its inner edge, as shown at c, and the curves are so formed that the horn comes to a point at its upper end. The inner edge of the bed-plate d is formed with the lip d, for the purposes hereinafter mentioned. Upon the upper surface of the lowerbar, e, of the upper sash, B, is secured the locking-stud f, which is attached to or made a part of the bed-plate g. In front of the stud f is pivoted to the bedplate 9 in the lugs gg the locking hasp or link h, which is acted upon by the spring i, that is arranged to normally hold the hasp or link h in horizontal position to engage with the horn c for locking the sashes A B together, and for drawing them together, the hasp or link it acting for the latter purpose over the curved outer edge, 0, of the horn c, as will be understood from Fig. 2.

jrepresents a locking-dog pivoted in the hasp or link h upon the pin 70, to act in connection with the stud f, for locking the sashes Afrom being raised and sash B from being Serial No. 163,761. (ModeL) lowered. The dog j is formed at one end with the projectionsl Z to engage with the corresponding projections, m m, of the stud At its other end the dog is formed with the toe Z which serves two purposes: first, to rest upon the bed-plate d when locked to relieve the pin of excessive strain, and, secondly, for tripping the look when the sashes are closed, as hereinafter described. The dog j is also formed at its upper edge with the finger-piece j, for turning the dog backward on its pivot 70 for disengaging the dog from the locking stud f. The stud f, besides being formed with the studs mm, is formed also with the shoulder m at its rear surface,with which the projection Z of the dog j is ,adapted to engage for holding the hasp or link It in ununlocked or vertical position, as shown in Fig. 3. The hasp or link h is formed at its lower or inner edge with the curve h, against which the inner edge of the bar a of the lower sash, A, strikes when the sash is lowered past thelink or hasp,so that it will force thehasp and the dog j slightly backward against the tension of spring 1' to the position shown in dotted lines in Fig. 3, to separate theprojection Z from the shoulder m, so that there will not be unnecessary friction between the dog j and studf at the time of closing the window. The toe Z of the locking-dog j,when the hasp or link h and dog are held in the position shown in Fig. 3, stands in front of the curved surface h of the hasp h and in line with the lip d of the bed-plate d, as shown clearly in said Fig. 3, so that in closing the sash, when the lip d strikes the toe Z it will turn the dog j on its pivot is and detach it from the shoulder at of the stud f. This permits the spring 2' to force the hasp h and dog j forward, so that the hasp will drop over horn c and the dog j into engagement with locking-stud f, and thus automatically lock the sashes. To unlock the sashes, the dog j must be turned backward upon its pivot 70, and the hasp or link h raised at the same time, and the hasp must be turned backward on its pivot to engage dog j with the stud m of the locking stud f, where it will be held, as shown in Fig. 3. A slight recess, a, is cut in the inner edge of the upper bar, a, of the lower sash, A, to form a clearance for the toe Z of the locking-dogj, so that it will not be operated in closing the sash until the lip d reaches the toe Z, In case the sash is not entirely closed the projection Z of the dog j will engage with the upper projection, m, of the locking-stud f, and still effectually lock the sash, so the lock is very effective and reliable, and requires no attention in looking the window.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. The sash-lock herein shown and described, which consists of the horn c, and lip, d, attached to the lower sash, the lookingstud f, attached to the upper sash, in combination with the link or hasp h, and locking- 20g j, pivoted therein, substantially as set.

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2. The stud: f, formed with shoulder m, in combinationwith hasp h and locking-dogj, 1

formed with stud Z for holding the hasp and 20 dog in vertical position, substantially as described.

3. The hasp h, formed with curve h, in combination with dogj, having projection Z, and

stud f, having shoulder m substantially as 25 and for the purposes set forth.

4. The locking-stud f, formed with projec, tions. m m, in combination with the hasp h, and dog j, pivoted therein and formed with projections Z Z, substantially as and for the 0 WM. W. HINE, BURR DAVIS. 

